<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>管理系统后台</title>
    <link  href="css/manage_style.css" rel="stylesheet" type="text/css">
</head>
<body>
<div id="all">
    <div id="all_body">
         <div id="top">
            <img src="img/top.png">
         </div>
         <div id="left">
              <img src="img/left.png">
         </div>
         <div id="right">
             <div class="top">
                  <img src="img/right_top.png">
             </div>
             <div class="left">
                  <img src="img/right_left.png">
             </div>
             <div class="right">
                  <img src="img/right_right.png">
             </div>
         </div>
    </div>
</div>
</body>
</html>